| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.89 |
| Score | 0% | 58% |
I biome is made up of naturally occurring flora and fauna. Fauna is which of the following?
animals |
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plants |
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minerals |
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habitats |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
The two heart chambers that collect blood are called:
valves |
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aorta |
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atria |
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ventricles |
The heart is the organ that drives the circulatory system. In humans, it consists of four chambers with two that collect blood called atria and two that pump blood called ventricles. The heart's valves prevent blood pumped out of the ventricles from flowing back into the heart.
A major difference between sound waves and light waves is which of the following?
a sound wave is much slower than a light wave |
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all of these are correct |
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a sound wave cannot travel through a vacuum |
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a sound wave is mechanical while a light wave is electromagnetic |
A vibrating object produces a sound wave that travels outwardly from the object through a medium (any liquid or solid matter). The vibration disturbs the particles in the surrounding medium, those particles disturb the particules next to them, and so on, as the sound propagates away from the vibration.
Elements that belong to the same period in the Periodic Table of the Elements have the same number of:
protons |
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electron shells |
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electrons |
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atomic mass units |
The rows of the Periodic Table are called periods and contain elements that have the same number of electron shells ordered from lower to higher atomic number.
Secondary consumers that also eat producers are known as:
omnivores |
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scavengers |
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herbivores |
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carnivores |
Secondary consumers (carnivores) subsist mainly on primary consumers. Omnivores are secondary consumers that also eat producers. Examples are rats, fish, and chickens.